1/* 2 * GPL HEADER START 3 * 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 only, 8 * as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License version 2 for more details (a copy is included 14 * in the LICENSE file that accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License 17 * version 2 along with this program; If not, see 18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf 19 * 20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 21 * CA 95054 USA or visit www.sun.com if you need additional information or 22 * have any questions. 23 * 24 * GPL HEADER END 25 */ 26/* 27 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. 28 * Use is subject to license terms. 29 */ 30/* 31 * This file is part of Lustre, http://www.lustre.org/ 32 * Lustre is a trademark of Sun Microsystems, Inc. 33 */ 34 35#define DEBUG_SUBSYSTEM S_RPC 36 37#include "../include/obd_support.h" 38#include "../include/obd_class.h" 39#include "../include/lustre_lib.h" 40#include "../include/lustre_ha.h" 41#include "../include/lustre_import.h" 42 43#include "ptlrpc_internal.h" 44 45 46void ptlrpc_fill_bulk_md(lnet_md_t *md, struct ptlrpc_bulk_desc *desc, 47 int mdidx) 48{ 49 CLASSERT(PTLRPC_MAX_BRW_PAGES < LI_POISON); 50 51 LASSERT(mdidx < desc->bd_md_max_brw); 52 LASSERT(desc->bd_iov_count <= PTLRPC_MAX_BRW_PAGES); 53 LASSERT(!(md->options & (LNET_MD_IOVEC | LNET_MD_KIOV | 54 LNET_MD_PHYS))); 55 56 md->options |= LNET_MD_KIOV; 57 md->length = max(0, desc->bd_iov_count - mdidx * LNET_MAX_IOV); 58 md->length = min_t(unsigned int, LNET_MAX_IOV, md->length); 59 if (desc->bd_enc_iov) 60 md->start = &desc->bd_enc_iov[mdidx * LNET_MAX_IOV]; 61 else 62 md->start = &desc->bd_iov[mdidx * LNET_MAX_IOV]; 63} 64 65void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, struct page *page, 66 int pageoffset, int len) 67{ 68 lnet_kiov_t *kiov = &desc->bd_iov[desc->bd_iov_count]; 69 70 kiov->kiov_page = page; 71 kiov->kiov_offset = pageoffset; 72 kiov->kiov_len = len; 73 74 desc->bd_iov_count++; 75} 76